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reftable/stack: verify that reftable_stack_add() uses auto-compaction

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While we have several tests that check whether we correctly perform
auto-compaction when manually calling `reftable_stack_auto_compact()`,
we don't have any tests that verify whether `reftable_stack_add()` does
call it automatically. Add one.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Patrick Steinhardt 2023-12-11 10:07:42 +01:00 committed by Junio C Hamano
parent 85a8c899ce
commit 15f98b602f
1 changed files with 49 additions and 0 deletions
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49
reftable/stack_test.c
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@ -850,6 +850,54 @@ static void test_reftable_stack_auto_compaction(void)
clear_dir(dir);
}
static void test_reftable_stack_add_performs_auto_compaction(void)
{
struct reftable_write_options cfg = { 0 };
struct reftable_stack *st = NULL;
struct strbuf refname = STRBUF_INIT;
char *dir = get_tmp_dir(__LINE__);
int err, i, n = 20;
err = reftable_new_stack(&st, dir, cfg);
EXPECT_ERR(err);
for (i = 0; i <= n; i++) {
struct reftable_ref_record ref = {
.update_index = reftable_stack_next_update_index(st),
.value_type = REFTABLE_REF_SYMREF,
.value.symref = "master",
};
/*
* Disable auto-compaction for all but the last runs. Like this
* we can ensure that we indeed honor this setting and have
* better control over when exactly auto compaction runs.
*/
st->disable_auto_compact = i != n;
strbuf_reset(&refname);
strbuf_addf(&refname, "branch-%04d", i);
ref.refname = refname.buf;
err = reftable_stack_add(st, &write_test_ref, &ref);
EXPECT_ERR(err);
/*
* The stack length should grow continuously for all runs where
* auto compaction is disabled. When enabled, we should merge
* all tables in the stack.
*/
if (i != n)
EXPECT(st->merged->stack_len == i + 1);
else
EXPECT(st->merged->stack_len == 1);
}
reftable_stack_destroy(st);
strbuf_release(&refname);
clear_dir(dir);
}
static void test_reftable_stack_compaction_concurrent(void)
{
struct reftable_write_options cfg = { 0 };
@ -960,6 +1008,7 @@ int stack_test_main(int argc, const char *argv[])
RUN_TEST(test_reftable_stack_add);
RUN_TEST(test_reftable_stack_add_one);
RUN_TEST(test_reftable_stack_auto_compaction);
RUN_TEST(test_reftable_stack_add_performs_auto_compaction);
RUN_TEST(test_reftable_stack_compaction_concurrent);
RUN_TEST(test_reftable_stack_compaction_concurrent_clean);
RUN_TEST(test_reftable_stack_hash_id);